package com.qk.management.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.DesensitizedUtil;
import cn.hutool.core.util.ObjectUtil;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qk.common.PageResult;
import com.qk.common.enums.ParamEnum;
import com.qk.common.exception.CommonException;
import com.qk.common.util.JwtUtils;
import com.qk.domain.user.UserDO;
import com.qk.dto.user.UserDTO;
import com.qk.dto.user.UserLoginDTO;
import com.qk.entity.User;
import com.qk.management.mapper.RoleMapper;
import com.qk.management.mapper.UserMapper;
import com.qk.management.service.UserService;
import com.qk.vo.user.UserLoginVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.util.ObjectUtils;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;

@Service
@SuppressWarnings("all")
public class UserServiceImpl implements UserService {
    @Autowired
    UserMapper userMapper;
    @Autowired
    RoleMapper roleMapper;

    private static final String DEFAULT_PASSWORD_SUFIX = "123";
    // 停用
    private static final Integer USER_STATUS_UNNORMAL = 0;

    @Override
    public UserLoginVO login(UserLoginDTO dto) {
        //参数合法性校验
        boolean hasNull = BeanUtil.hasNullField(dto);
        if(hasNull){
            CommonException.throwCommonException(ParamEnum.PARAM_ERROR);
        }
        //账户名校验
        User dbUser = userMapper.getByUsername(dto.getUsername());
        if (Objects.isNull(dbUser)){
            CommonException.throwCommonException(ParamEnum.LOGIN_USERNAME_ERROR);
        }
        //用户状态校验
        if(ObjectUtil.equal(dbUser.getStatus(), USER_STATUS_UNNORMAL)){
            CommonException.throwCommonException(ParamEnum.LOGIN_USER_STATUS_ERROR);
        }
        //密码校验
        if(!ObjectUtil.equal(dbUser.getPassword(), DigestUtils.md5DigestAsHex(dto.getPassword().getBytes()))){
            CommonException.throwCommonException(ParamEnum.LOGIN_PASSWORD_ERROR);
        }
        //获取角色标签
        String roleLabel = roleMapper.getById(dbUser.getRoleId()).getLabel();
        //封装claims
        Map<String,Object> claims = new HashMap<>();
        claims.put("id",dbUser.getId());
        claims.put("username",dbUser.getUsername());

        return UserLoginVO.builder()
                .id(dbUser.getId())
                .username(dbUser.getUsername())
                .name(dbUser.getName())
                .image(dbUser.getImage())
                .roleLabel(roleLabel)
                .token(JwtUtils.generateToken(claims))
                .build();
    }

    @Override
    public PageResult<UserDO> listUsers(UserDTO userDto) {
        PageHelper.startPage(userDto.getPage(), userDto.getPageSize());
        List<UserDO> result = userMapper.selectByPage(userDto);
        //手机号信息脱敏
        result.forEach(user -> user.setPhone(DesensitizedUtil.mobilePhone(user.getPhone())));
        Page<UserDO> page = (Page<UserDO>)  result;
        return PageResult.<UserDO>builder()
                .total(page.getTotal())
                .rows(page.getResult())
                .build();
    }

    @Override
    public void addUser(User user) {
        boolean hasNull = BeanUtil.hasNullField(user, "id","password","roleId","deptId","image","remark","updateTime","createTime" );
        if (hasNull){
            CommonException.throwCommonException(ParamEnum.PARAM_ERROR);
        }
        user.setCreateTime(LocalDateTime.now());
        user.setUpdateTime(LocalDateTime.now());
        String rawPassword= new StringBuilder(user.getUsername()).append(DEFAULT_PASSWORD_SUFIX).toString();
        String encodedPassword = DigestUtils.md5DigestAsHex(rawPassword.getBytes());
        user.setPassword(encodedPassword);
        userMapper.insert(user);
    }

    @Override
    public void updateUser(User user) {
        user.setUpdateTime(LocalDateTime.now());
        userMapper.update(user);
    }

    @Override
    public void deleteUser(List<Integer> ids) {
        boolean isNotEmpty = CollectionUtil.isNotEmpty(ids);
        if (!isNotEmpty){
            CommonException.throwCommonException(ParamEnum.PARAM_ERROR);
        }
        ids.forEach(id -> userMapper.deleteById(id));
    }

    @Override
    public User getById(Integer id) {
        if (Objects.isNull(id)){
            CommonException.throwCommonException(ParamEnum.PARAM_ERROR);
        }
        User user = userMapper.getById(id);
        user.setPassword("");
        return user;
    }

    @Override
    public List<User> getAll() {
        return userMapper.getAll();
    }

    @Override
    public List<User> getByDeptId(Integer deptId) {
        if (Objects.isNull(deptId)){
            CommonException.throwCommonException(ParamEnum.PARAM_ERROR);
        }
        return userMapper.getByDeptId(deptId);
    }

    @Override
    public List<User> getByRoleLabel(String roleLabel) {
        if (ObjectUtils.isEmpty(roleLabel)){
            CommonException.throwCommonException(ParamEnum.PARAM_ERROR);
        }
        return userMapper.getByRoleLabel(roleLabel);
    }


}
